minor tweaks

Former-commit-id: 453b3f877c5b2a828d8d3790030e599f463a6ad2

style-guidelines.md

@@ -114,16 +114,16 @@ header file. A typical documentation consists of four parts:
 // [A human readable description of what the function does.]
 //
 // Inputs:
-//   [variable name of first (const) input]   [dimensions and
-//     description of this input variable]
-//   [variable name of second (const) input]   [dimensions and
-//     description of this input variable]
+//   [variable name of first (const) input]   [dimensions and description of
+//     this input variable]
+//   [variable name of second (const) input]   [dimensions and description of
+//     this input variable]
 //   ...
 // Outputs:
-//   [variable name of first output ]   [dimensions and
-//     description of this output variable]
-//   [variable name of second output ]   [dimensions and
-//     description of this output variable]
+//   [variable name of first output ]   [dimensions and description of this
+//     output variable]
+//   [variable name of second output ]   [dimensions and description of this
+//     output variable]
 //   ...
 // Returns [description of return value]
 ```
@@ -136,10 +136,10 @@ For example the header `barycenter.h`
 // Computes the barycenter of every simplex
 //
 // Inputs:
-//   V  #V x dim matrix of vertex coordinates
-//   F  #F x simplex_size  matrix of indices of simplex corners into V
+//   V  #V by dim matrix of vertex coordinates
+//   F  #F by simplex_size  matrix of indices of simplex corners into V
 // Output:
-//   BC  #F x dim matrix of 3d vertices
+//   BC  #F by dim matrix of 3d vertices
 //
 ```